MECHANISM: convertible mechanism easy to convert into bed position only applying a slight pressure on the backrest and sliding the seat forward. UPHOLSTERY: differentiated density polyurethane foam, produced and assembled according with the CEE standards. SITTING: polyurethane foam density 30kg/m3. BACKREST: goose feather. LINING: fabric or synthetic leather: completely removable lining. Leather: no available. FEET: steel chrome feet.